Viashino Shanktail

First strike
Bloodrush — , Discard Viashino Shanktail: Target attacking creature gets +3/+1 and gains first strike until end of turn.

Slaughterhorn

Bloodrush — , Discard Slaughterhorn: Target attacking creature gets +3/+2 until end of turn.

Skinbrand Goblin

Bloodrush — , Discard Skinbrand Goblin: Target attacking creature gets +2/+1 until end of turn.

Scorchwalker

Bloodrush — , Discard Scorchwalker: Target attacking creature gets +5/+1 until end of turn.

Skarrg Goliath

Trample
Bloodrush — , Discard Skarrg Goliath: Target attacking creature gets +9/+9 and gains trample until end of turn.

Skarrg Goliath

Trample
Bloodrush — , Discard Skarrg Goliath: Target attacking creature gets +9/+9 and gains trample until end of turn.

Rubblehulk

Rubblehulk’s power and toughness are each equal to the number of lands you control.
Bloodrush — , Discard Rubblehulk: Target attacking creature gets +X/+X until end of turn, where X is the number of lands you control.

Ghor-Clan Rampager

Trample
Bloodrush — , Discard Ghor-Clan Rampager: Target attacking creature gets +4/+4 and gains trample until end of turn.